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Tap water quality report

Rochester, PA

EPA monitoring detected 18 contaminants across the 1 water supplier serving Rochester. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

1
water supplier
4,276
people served
18
contaminants found
Pennsylvania rankings Lead in Pennsylvania PFAS in Pennsylvania

What was found in Rochester's water

The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Copper
653 µg/L 50%
of the EPA limit 1300 µg/L
 1/1 SYR4
TTHM
151 µg/L 189%
of the EPA limit, in the worst sample — 80 µg/L
 1/1 SYR4
Chloroform
96 µg/L
No EPA limit set
 1/1 SYR4
Total Haloacetic Acids (HAA5)
88.7 µg/L 148%
of the EPA limit, in the worst sample — 60 µg/L
 1/1 SYR4
Trichloroacetic Acid
39.2 µg/L
No EPA limit set
 1/1 SYR4
Bromodichloromethane
35 µg/L
No EPA limit set
 1/1 SYR4
Dichloroacetic Acid
27.7 µg/L
No EPA limit set
 1/1 SYR4
Dibromochloromethane
19.9 µg/L
No EPA limit set
 1/1 SYR4
Lead
9.6 µg/L 64%
of the EPA limit 15 µg/L
 1/1 SYR4
Monochloroacetic Acid
4 µg/L
No EPA limit set
 1/1 SYR4
Bromoform
3.03 µg/L
No EPA limit set
 1/1 SYR4
Dibromoacetic Acid
2 µg/L
No EPA limit set
 1/1 SYR4
Monobromoacetic Acid
1.32 µg/L
No EPA limit set
 1/1 SYR4
PFBS
0.0269 µg/L
No EPA limit set
 1/1 UCMR-5
Pfba
0.0054 µg/L
No EPA limit set
 1/1 UCMR-5
Pfhxa
0.0049 µg/L
No EPA limit set
 1/1 UCMR-5
Pfpea
0.0042 µg/L
No EPA limit set
 1/1 UCMR-5
Lead
0.0014 mg/L 9%
of the EPA limit 0.0150 mg/L
 1/1 LCR
Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Rochester

SupplierPopulation served
NEW SEWICKLEY TWP MUNI AUTH 4,276

Frequently asked questions about Rochester tap water

Is Rochester tap water safe to drink?

EPA testing detected 18 contaminants in the water serving Rochester. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Rochester?

1 public water supplier report drinking-water monitoring for Rochester, Pennsylvania to the EPA. Each is listed above with its population served.

What contaminants are in Rochester's water?

The contaminants EPA monitoring detected in Rochester include Copper, TTHM, Chloroform, Total Haloacetic Acids (HAA5), Trichloroacetic Acid. The full list, with the highest level found and the data source, is in the table above.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.